Bubble machine



FIG. 1 is a top front perspective view of the bubble machine of the present invention;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is an elevation view of the left side thereof;

FIG. 6 is an elevational view of the right side thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

CLAIM The ornamental design of a bubble machine, substantially as shown and described. 